The importance of nickel in rechargeable battery technologies

May 22, 2017

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  An electric battery is a device consisting of one or more electrochemical cells, which is comprised of two electrodes—an anode and a cathode, and an electrolyte. When the two electrodes are linked by an electrical pathway, electrons can flow. When a battery is supplying electric power, the anode is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device.

Electrolytes are able to move as ions within, allowing chemical reactions to be completed at the separate electrodes and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to provide power.

Batteries come in two classifications, based on whether the electrodes can be regenerated and thus the battery recharged. These classifications are: Primary (single-use or disposable) and Secondary (rechargeable) batteries.

Secondary (rechargeable) batteries come in different varieties, such as the well-known lead-acid battery found in automobiles, NiCd (Nickel Cadmium), NiMH (Nickel Metal Hydride) and Li-ion (Lithium ion). Nickel is an essential cathode component of many Secondary battery designs, including Li-ion.

Current Issue

Battery technology

Past, present and future use of nickel

May 03, 2017

Vol32-1 - 150*110

Feature Story:
Demand side response and battery storage systems rise to the challenge
The demand for energy is continually increasing; at national levels, within communities and in households. The traditional method of meeting this demand has been to increase production on the supply-side.